a special election is being held. she is a political knew bee. now, if she wins the democratic primary, she can face mark sanford, the disgraced exgovernor. >> up next, faa officials weighing in on the battery problem that grounded all boeing 767s. >> and lance armstrong's doping confession, we talked to a author who wrote the book on doping and weighs in on this disgraced cyclist. >> disturbing video of a vicious attack on a subway platform. he then pushes and pulls this woman on to the track autos and the move from the tsa today on the controversial airport scanners. that is coming >> i view this situation as one big lie. i repeated a lot of times. >> part two of the interview with disgraced cyclist lance armstrong airs tonight. admitting that he lied for years is not satisfying many critics. >> armstrong's confession set a record for her network with 4.3 million viewers. the union says it's an important step towards repairing. abc 7 news has local and national reaction to the admission. >> all of the faults and blame here falls on me. >> lance